求教 数据库 mongodb ,扩展 php-mongodb ,都已经安装完成,应用市场执行安装的时候报错,报错如下:`sql
SQLSTATE[42S21]: Column already exists: 1060 Duplicate column name 'market_group_id' The SQL being executed was: ALTER TABLE admin_user ADD market_group_id VARCHAR( 60 ) NULL COMMENT '小组名称', ADD work_type INT( 5 ) NULL COMMENT '工作岗位'